检索结果-南通市图书馆

Global blue carbon accumulation in tidal wetlands increases with climate change

National Science Review 2021年第9期8卷 145-155页

作者： Faming Wang christian j.sanders Isaac R.Santos jianwu Tang Mark Schuerch Matthew L.Kirwan Robert E.Kopp Kai Zhu Xiuzhen Li jiacan Yuan Wenzhi Liu Zhian Li Xiaoliang Research Station for Tropical Coastal Ecosystems Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems and the CAS Engineering Laboratory for Ecological Restoration of Island and Coastal Ecosystems South China Botanical Garden Chinese Academy of Sciences Center of Plant Ecology Core Botanical Gardens Chinese Academy of Sciences Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) State Key Laboratory of Estuarine and Coastal Research and Institute of Eco-Chongming East China Normal University National Marine Science Centre School of Environment Science and Engineering Southern Cross University Department of Marine Sciences University of Gothenburg Lincoln Centre for Water and Planetary Health School of Geography University of Lincoln Virginia Institute of Marine Science College of William and Mary Department of Earth and Planetary Sciences and Rutgers Institute of Earth Ocean and Atmospheric Sciences Rutgers University Department of Environmental Studies University of California Department of Atmospheric and Oceanic Sciences Fudan University CAS Key Laboratory of Aquatic Botany and Watershed Ecology Wuhan Botanical GardenChinese Academy of Sciences

Coastal tidal wetlands produce and accumulate significant amounts of organic carbon(C) that help to mitigate climate change. However, previous data limitations have prevented a robust evaluation of the global rates and mechanisms driving C accumulation. Here, we go beyond recent soil C stock estimates to reveal global tidal wetland C accumulation and predict changes under relative sea level rise, temperature and precipitation. We use data from literature study sites and our new observations spanning wide latitudinal gradients and 20 countries. Globally, tidal wetlands accumulate 53.65(95%CI: 48.52–59.01)Tg C yr-1, which is ～30% of the organic C buried on the ocean floor. Modeling based on current climatic drivers and under projected emissions scenarios revealed a net increase in the global C accumulation by2100. This rapid increase is driven by sea level rise in tidal marshes, and higher temperature and precipitation in mangroves. Countries with large areas of coastal wetlands, like Indonesia and Mexico, are more susceptible to tidal wetland C losses under climate change, while regions such as Australia, Brazil, the USA and China will experience a significant C accumulation increase under all projected scenarios.

关键词： coastal wetlands blue C C burial rate global change

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Coastal blue carbon in China as a nature-based solution toward carbon neutrality

引用

The Innovation 2023年第5期4卷 109-123页

作者： Faming Wang jihua Liu Guoming Qin jingfan Zhang jinge Zhou jingtao Wu Lulu Zhang Poonam Thapa christian j.sanders Isaac R.Santos Xiuzhen Li Guanghui Lin Qihao Weng jianwu Tang Nianzhi jiao Hai Ren Xiaoliang Research Station of Tropical Coastal Ecosystems Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystemsand the CAS Engineering Laboratory for Ecological Restoration of lsland and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhou 510650China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 510650China Marine Research Institute Shandong UniversityQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China National Marine Science Centre Faculty of Science and EngineeringSouther Cross UniversityCoffs HarbourNSW 2450Australia Department of Marine Sciences University of Gothenburg41319 GothenburgSweden State Key Laboratory of Estuarine and Coastal Research and Instiute of Eco-Chongming East China Normal UniversityShanghai 201100China Key Laboratory for Earth System Modeling Ministry of EducationDepartment of Earth System ScienceTsinghua UniversityBejing 100084China Laboratory of Stable Isotope and Gulf Ecology Institute of Ocean EngineeringTsinghua's Shenzhen International Graduate SchoolShenzhen 518055China Department of Land Surveying and Geo-nformatics The Hong Kong Polytechnic UniversiyHongkong 99077China Innovative Research Center for Carbon Neutralization Global ONCE ProgramXiamen 361005China

To achieve the Paris Agreement,China pledged to become“Carbon Neutral”by the *** addition to massive decarbonization,this would require significant changes in ecosystems toward negative CO_(2)*** ability of coastal blue carbon ecosystems(BCEs),including mangrove,salt marsh,and seagrass meadows,to sequester large amounts of CO_(2)makes their conservation and restoration an important“nature-based solution(NbS)”for climate adaptation and *** this review,we examine how BCEs in China can contribute to climate *** the national scale,the BCEs in China store up to 118 Tg C across a total area of 1,440,377 ha,including over 75%as unvegetated tidal *** annual sedimental C burial of these BCEs reaches up to 2.06 Tg C year^(−1),of which most occurs in salt marshes and tidal *** lateral C flux of mangroves and salt marshes contributes to 1.17 Tg C year^(−1)along the Chinese *** and restoration of BCEs benefit climate change mitigation and provide other ecological services with a value of$32,000 ha^(−1)year^(−1).The potential practices and technologies that can be implemented in China to improve BCE C sequestration,including their constraints and feasibility,are also *** directions are suggested to improve blue carbon estimates on aerial extent,carbon stocks,sequestration,and mitigation *** and preserving BCEs would be a cost-effective step to achieve Carbon Neutral by 2060 in China despite various barriers that should be removed.

关键词： tidal coastal carbon

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Multinuclear MR and MRI study of lithium-ion cells using a variable field magnet and a fixed frequency RF probe

引用

Magnetic Resonance Letters 2024年第1期4卷 10-20页

作者： Andrés Ramírez Aguilera Florin Marica Kevin j.sanders Md Al Raihan C.Adam Dyker Gillian R.Goward Bruce *** UNB MRI Centre Department of PhysicsUniversity of New BrunswickFrederictonNew BrunswickE3B 5A3Canada Department of Chemistry McMaster UniversityHamiltonOntarioL8S 4L8Canada Department of Chemistry University of New BrunswickFrederictonNew BrunswickE3B 5A3Canada

An exploratory multinuclear magnetic resonance(MR)and magnetic resonance imaging(MRI)study was performed on lithium-ion battery cells with ^(7)Li,^(19)F,and ^(1)H measurements.A variable field superconducting magnet with a fixed frequency parallel-plate radiofrequency(RF)probe was employed in the *** magnetic field was changed to set the resonance frequency of each nucleus to the fixed RF probe frequency of 33.7 *** cartridge-like lithium-ion cells,with graphite anodes and LiNi_(0.5)Mn_(0.3)Co_(0.2)O_(2)(NMC)cathodes,were *** cell was pristine,and one was charged to a cell voltage of 4.2 *** results presented demonstrate the great potential of the variable field magnet approach in multinuclear measurement of lithium-ion *** methods open the door for developing faster and simpler methods for detecting,quantifying,and interpreting MR and MRI data from lithium-ion and other batteries.

关键词： Multinuclear MR/MRI Variable field magnet Lithium-ion battery Parallel-plate rf probe

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

COmbination of Targeted temperature management and Thrombectomy after acute Ischemic Stroke(COTTIS):a pilot study

引用

Stroke & Vascular Neurology 2024年第3期9卷 258-267页

作者： jürgen Bardutzky Rainer Kollmar Forat Al-Rawi johann Lambeck Mohammad Fazel christian Taschner Wolf-Dirk Niesen Department of Neurology and Neurophysiology Medical Center-University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany Neurology and Neurointensive Care Darmstadt HospitalDarmstadtGermany BrainCool AB LundSweden Department of Neuroradiology Medical Center-University of FreiburgFaculty of MedicineUniversity of FreiburgFreiburgGermany

Background To evaluate the feasibility and safety of a fast initiation of cooling to a target temperature of 35℃by means of transnasal cooling in patients with anterior circulation large vessel occlusion(LVO)undergoing endovascular thrombectomy(EVT).Methods Patients with an LVO onset of<24hour who had an indication for EVT were included in the *** cooling(RhinoChill)was initiated immediately after the patient was intubated for EVT and continued until an oesophageal target temperature of 35℃was *** was maintained with surface cooling for 6-hour postrecanalisation,followed by active rewarming(+0.2℃/hour).The primary outcome was defined as the time required to reach 35℃,while secondary outcomes comprised clinical,radiological and safety *** Twenty-two patients(median age,77 years)were included in the study(14 received additional thrombolysis,4 additional stenting of the proximal internal carotid artery).The median time intervals were 309min for last-seen-normal-to-groin,58min for door-to-cooling-initiation,65min for door-to-groin and 123min for *** target temperature of 35℃was reached within 30min(range 13–78min),corresponding to a cooling rate of 2.6℃/*** recanalisation,86%of the patients had a body temperature of≤35℃.The median National Institutes of Health Stroke Scale at admission was 15 and improved to 2 by day 7,and 68%of patients had a good outcome(modified Rankin Scale 0–2)at 3 *** complications included asymptomatic bradycardia(32%),pneumonia(18%)and asymptomatic haemorrhagic transformation(18%).Conclusion The combined application of hypothermia and thrombectomy was found to be feasible in sedated and ventilated *** events were comparable to those previously described for EVT in the absence of *** effect of this procedure will next be evaluated in the randomised COmbination of Targeted temperature management and Thrombectomy after acute Ischemic Stro

关键词： maintained continued initiated

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Four buildings and a flush:Lessons from degraded water quality and recommendations on building water management

引用

Environmental Science and Ecotechnology 2024年第2期18卷 104-113页

作者： Kyungyeon Ra Caitlin Proctor christian Ley Danielle Angert Yoorae Noh Tolulope Odimayomi Andrew j.Whelton Lyles School of Civil Engineering Purdue University550 Stadium Mall DriveWest LafayetteIN47907USA Agricultural and Biological Engineering Division of Environmental and Ecological EngineeringPurdue UniversityWest LafayetteIN47907USA Division of Environmental and Ecological Engineering Purdue UniversityWest LafayetteIN47907USA Civil and Environmental Engineering University of Colorado1111 Engineering DriveBoulderCO80309USA Civil Architectural and Environmental EngineeringUniversity of Texas301E E Dean Keeton StreetAustinTX78712USA Civil and Environmental Engineering Virginia Tech750 Drillfield DriveBlacksburgVA24061USA Lyles School of Civil Engineering Division of Environmental and Ecological EngineeringPurdue University550 Stadium Mall DriveWest LafayetteIN47907USA

A reduction in building occupancy can lead to stagnant water in plumbing,and the potential consequences for water quality have gained increasing *** investigate this,a study was conducted during the COVID-19 pandemic,focusing on water quality in four institutional *** of these buildings were old(>58 years)and large(>19,000 m2),while the other two were new(>13 years)and small(<11,000 m2).The study revealed significant decreases in water usage in the small buildings,whereas usage remained unchanged in the large *** analysis found that residual chlorine was rarely detectable in cold/drinking water ***,the pH,dissolved oxygen,total organic carbon,and total cell count levels in the first draw of cold water samples were similar across all ***,the ranges of heavy metal concentrations in large buildings were greater than observed in small ***(Cu),lead(Pb),and manganese(Mn)sporadically exceeded drinking water limits at cold water fixtures,with maximum concentrations of 2.7 mg Cu L^(-1),45.4 mg Pb L^(-1),1.9 mg Mn L^(-1).Flushing the plumbing for 5 min resulted in detectable residual at fixtures in three buildings,but even after 125 min of flushing in largest and oldest building,no residual chlorine was detected at the fixture closest to the building's point of *** the pandemic,the building owner conducted fixture flushing,where one to a few fixtures were operated per visit in buildings with hundreds of fixtures and multiple ***,further research is needed to understand the fundamental processes that control faucet water quality from the service line to the *** the absence of this knowledge,building owners should create and use as-built drawings to develop flushing plans and conduct periodic water testing.

关键词： COVID-19 pandemic Stagnation Drinking water quality Flushing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Enhancing 3D Reconstruction Accuracy of FIB Tomography Data Using Multi‑voltage Images and Multimodal Machine Learning

引用

Nanomanufacturing and Metrology 2024年第1期7卷 48-60页

作者： Trushal Sardhara Alexander Shkurmanov Yong Li Lukas Riedel Shan Shi christian j.Cyron Roland C.Aydin Martin Ritter Institute for Continuum and Material Mechanics Hamburg University of TechnologyHamburgGermany Electron Microscopy Unit Hamburg University of TechnologyHamburgGermany Institute of Materials Physics and Technology Hamburg University of TechnologyHamburgGermany Institute of Materials Mechanics Helmholtz-Zentrum HereonGeesthachtGermany Research Group of Integrated Metallic Nanomaterials Systems Hamburg University of TechnologyHamburgGermany Institute of Material Systems Modeling Helmholtz-Zentrum HereonGeesthachtGermany

FIB-SEM tomography is a powerful technique that integrates a focused ion beam(FIB)and a scanning electron microscope(SEM)to capture high-resolution imaging data of *** approach involves collecting in-plane SEM imagesand using FIB to remove material layers for imaging subsequent planes,thereby producing image ***,theseimage stacks in FIB-SEM tomography are subject to the shine-through effect,which makes structures visible from theposterior regions of the current *** artifact introduces an ambiguity between image intensity and structures in thecurrent plane,making conventional segmentation methods such as thresholding or the k-means algorithm *** study,we propose a multimodal machine learning approach that combines intensity information obtained at differentelectron beam accelerating voltages to improve the three-dimensional(3D)reconstruction of *** treatingthe increased shine-through effect at higher accelerating voltages as a form of additional information,the proposed methodsignificantly improves segmentation accuracy and leads to more precise 3D reconstructions for real FIB tomography data.

关键词： Multimodal machine learning Multi-voltage images FIB-SEM Overdeterministic systems 3D reconstruction FIB tomography

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

互花米草有利于我国海岸带蓝碳功能提升

引用

Science Bulletin 2024年第12期69卷 1991-2000页

作者：张靖凡毛德华刘纪化陈雅萍 Matthew Kirwan christian sanders 周金戈卢哲覃国铭黄幸运李慧焉恒琦焦念志苏纪兰王法明 Guangdong Key Laboratory of Applied Botany Xiaoliang Research Station of Tropical Coastal Ecosystemsthe CAS Engineering Laboratory for Ecological Restoration of Island and Coastal EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhou 510650China University of Chinese Academy of Sciences Beijing 100049China South China National Botanical Garden Chinese Academy of SciencesGuangzhou 510650China Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130102China Marine Research Institute Shandong UniversityQingdao 266237China School of Ecology Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China Virginia Institute of Marine Science Gloucester PointVA 23062USA National Marine Science Centre School of EnvironmentScience and EngineeringSouthern Cross UniversityCoffs HarbourNSW 2450Australia Guangdong Eco-engineering Polytechnic Guangzhou 510520China Carbon Neutral Innovation Research Center and Fujian Key Laboratory of Marine Carbon Sequestration Xiamen UniversityXiamen 361005China Second Institute of Oceanography State Oceanic AdministrationHangzhou 310012China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China School of Ecology and Environment Hainan UniversityHaikou 570228China

Spartina alterniflora has rapidly and extensively encroached on China's coastline over the past *** the coastal areas invaded by ***,at most 93%are ***,the effect of *** invasion on soil organic carbon(SOC)stocks of coastal mudflats has not been systematically studied on a national ***,we quantified the nationwide changes in SOC stocks in coastal mudflats associated with *** invasion between 1990 and *** found that *** invasion significantly enhanced SOC stocks in coastal ***,the benefit of *** invasion of coastal SOC stock may be weakened by continuing human *** found that *** invading mudflats added 2.3 Tg SOC stocks to China's coastal blue carbon,while 1.78 Tg SOC stocks were lost mainly due to human activities,resulted in a net SOC stock gain of 0.52 Tg *** findings overturned the traditionally thought that *** invasion would reduce ecosystem services by highlighting that the historical invasion of *** has broadly and consistently enhanced blue carbon stock in coastal China.

关键词： Spartina alterniflora invasion Mudflats China coastal wetland Blue carbon sequestration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Differential effects of two dominant plant species on community structure and invasibility in an old-field ecosystem

引用

journal of Plant Ecology 2011年第3期4卷 123-131页

作者： Lara Souza jake F.Weltzin Nathan j.sanders Department of Ecology and Evolutionary Biology University of Tennessee1416 Circle DriveKnoxvilleTN 37996USA USA National Phenology Network National Coordinating Office1955 East 6th StreetTucsonAZ 85719USA

Aims In this study,we examined the effects of Solidago altissima(hereafter Solidago)and two species in the genus Verbesina,Verbesina virginica and Verbesina occidentalis(hereafter Verbesina),on the structure of an old-field plant community and establishment by an invasive plant species,Lespedeza cuneata(hereafter Lespedeza).Methods We removed Solidago,Verbesina and both Solidago and Verbesina from 4m^(-2)plots in an intact old-field community during two growing *** then quantified the effects of these removals on richness,evenness,diversity and composition of the subdominant plant *** also measured the total aboveground biomass and the aboveground biomass of the subdominant *** assess how these removals affected establishment by Lespedeza,we planted 20 seeds in each plot and tracked seedling emergence and survival for one growing *** Findings Subdominant community evenness and Shannon diversity were higher in plots from which Solidago and Verbesina were removed relative to control ***,there were no effects of dominant species removal on species richness or composition of the subdominant *** aboveground biomass was not affected by dominant species removal,suggesting that the community of subdominant species exhibited *** fact,subdominant community biomass was greater when Solidago,but not Verbesina,was *** availability was also greater in plots where Solidago was removed relative to control plots throughout the growing *** addition,removal of dominant species,in particular Solidago,indirectly reduced the emergence,but not survival,of Lespedeza seedlings by directly promoting subdominant community *** together,our results suggest that dominant old-field plant species affect subdominant community structure and indirectly promote establishment by Lespedeza.

关键词： compensation establishment invasive Lespedeza cuneata Solidago Verbesina

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Modified Lagrange Method for Solving Convex Quadratic Optimization Problems

引用

Open journal of Optimization 2024年第1期13卷 1-20页

作者： Twum B. Stephen Avoka john christian j. Etwire School of Mathematical Science C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana Department of Mathematics University for Development Studies Tamale Ghana

In this paper, a modified version of the Classical Lagrange Multiplier method is developed for convex quadratic optimization problems. The method, which is evolved from the first order derivative test for optimality of the Lagrangian function with respect to the primary variables of the problem, decomposes the solution process into two independent ones, in which the primary variables are solved for independently, and then the secondary variables, which are the Lagrange multipliers, are solved for, afterward. This is an innovation that leads to solving independently two simpler systems of equations involving the primary variables only, on one hand, and the secondary ones on the other. Solutions obtained for small sized problems (as preliminary test of the method) demonstrate that the new method is generally effective in producing the required solutions.

关键词： Quadratic Programming Lagrangian Function Lagrange Multipliers Optimality Conditions Subsidiary Equations Modified Lagrange Method

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Aboveground resilience to species loss but belowground resistance to nitrogen addition in a montane plant community

引用

journal of Plant Ecology 2018年第3期11卷 351-363页

作者： Quentin D.Read jeremiah A.Henning Aimée T.Classen Nathan j.sanders Department of Ecology and Evolutionary Biology University of Tennessee569 Dabney HallKnoxvilleTN 37996USA Rocky Mountain Biological Laboratory PO Box 615Crested ButteCO 81224USA Center for Macroecology Evolutionand ClimateNatural History Museum of DenmarkUniversity of CopenhagenUniversitetsparken 152100 CopenhagenDenmark Rubenstein School of Environment and Natural Resources University of VermontBurlingtonVT 05405USA

Aims Decades of empirical work have demonstrated how dominant plant species and nitrogen fertilization can influence the structure and function of plant *** recent studies have examined the interplay between these factors,but few such studies use an explicit trait-based *** this study,we use an explicit trait-based approach to identify potential mechanisms for community-level responses and to test ecological niche *** We experimentally manipulated plant communities(control,−dom-inant species,−random biomass)and nitrogen(N)inputs(control,+organic N,+inorganic N)in a fully factorial *** predicted that traits related to plants’ability to take up different forms of soil N would differ between dominant and subordinate species,resulting in interactive effects of dominant species loss and N fertilization on plant community structure and *** study took place in a montane meadow in the Rocky Mountains,Colorado,*** Findings After four years,the plant community in removal plots converged toward a species composition whose leaf and root functional traits resembled those of the previously removed dominant *** productivity generally increased with N addition:soil carbon efflux was~50%greater when either form of N was added,while inorganic N addition increased aboveground biomass pro-duction by~60%relative to *** increase in production was mediated by increased average height,leaf mass:area ratio and leaf dry matter content in plant communities to which we added inorganic *** to our predictions,there were no interactive effects of N fertilization and dominant species loss on plant com-munity structure or ecosystem *** plant community com-position in this study exhibited resistance to soil N addition and,given the functional convergence we observed,was resilient to spe-cies ***,our results indicate that the ability of species to compensate functionally for species loss confers

关键词： dominant species fertilization functional trait removal experiment resilience

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：